Temperature and heat

In this study, two gelling agents, PVA and tartaric acid, were combined. The addition of tartaric acid to the reaction mixture enhanced its complexation ability, provided additional heat, reduced the concentration of PVA, and lowered the synthesis temperature of the material.

7p vithomson 02-07-2024 0 0   Download

Part 1 of ebook "Soil physics with Python: Transport in the soil–plant–atmosphere system" provides readers with contents including: Chapter 1 - Introduction; Chapter 2 - Basic physical properties of soil; Chapter 3 - Soil gas phase and gas diffusion; Chapter 4 - Soil temperature and heat flow; Chapter 5 - Soil liquid phase and soil–water interactions; Chapter 6 - Steady-state water flow and hydraulic conductivity; Chapter 7 - Variation in soil properties; Chapter 8 - Transient water flow;...

211p daonhiennhien 03-07-2024 1 1   Download

In comparison to the vapour gas-compression refrigeration, magnetic heat-pumping near room-temperature is regarded to be an alternative technology due to its high energy efficiency and environmentally friendly solid-state cooling materials. The magnetic heat pump technology utilizes the magnetic field induced temperature change, which is based on the magnetocaloric effect (MCE).

7p visergeyne 18-06-2024 3 0   Download

Part 2 book "Automotive science and mathematics" includes content: Friction, velocity and acceleration, speed, vehicle dynamics, balancing and vibrations, heat and temperature, internal combustion engines, theoretical engine cycles, fuels and combustion and emissions, electrical principles, electronic principles.

144p dianmotminh03 17-06-2024 1 0   Download

Part 1 book "How buildings work - The natural order of architecture" includes content: The outdoor environment, TNE human environment, the concept or shelter, buildingf function, providing water, recycling wastes, providing for thermal comfort, thermal properties or building components, controlling the radiation or heat, controllingf air temperature and humidity.

113p dianmotminh03 17-06-2024 1 1   Download

Part 2 book "Air conditioning and refrigeration" includes content: Refrigerant - flow control; servicing and safety; freezers; temperature, psychrometrics and air control; comfort air conditioning; commercial air conditioning systems; various types of air conditioners and heat pumps; estimating load and insulating pipes; installing and controlling electrical power for air conditioning units; air conditioning and refrigeration careers.

306p dianmotminh01 20-05-2024 2 1   Download

Part 1 book "An introduction to electrical science" includes content: SI system of measurements, electrical schematic and wiring diagrams, the 'electron theory' of electricity, electric current, potential and potential difference, resistance, resistors, conductors and cables, effect of temperature change upon resistance, Ohm's Law of constant proportionality, Series, parallel and series-parallel circuits, electrical measurements, cells and batteries, internal resistance, energy, work, heat and power.

164p dianmotminh01 20-05-2024 5 4   Download

The study results show inter-relationships and transformations of the three indicators in the research context, where urban land temperature and Urban Heat Island (UHI) are raised by built-up areas and in contrast, reduced by vegetated areas. As a result, urban green space would be a driver to mitigate the harmful impact of the "heat island" effect in urban areas. Aim to strengthen concentrated green areas and vegetation in land areas that are less favorable for construction.

11p dianmotminh02 03-05-2024 4 1   Download

The 3D printing PMMA/ZrO2 filaments with a diameter of 1.75±0.05 mm were fabricated by using a single-screw extruder at temperatures of four heating zones of 190, 200, 210, and 210°C. Testing samples were prepared from the extruded filaments by using a fusion deposition modeling 3D printer and a Haake MiniJet piston injection molding machine. Fourier transform infrared spectroscopy, mechanical properties, field emission scanning electron microscopy (FESEM), differential scanning calorimetry, and thermogravimetric analysis of the filaments were investigated.

9p dianmotminh02 03-05-2024 1 1   Download

The highest luminescence product consists of spheroidal and relatively uniform particles with sizes around 0.6-1.0 µm. The variation of the precipitated precursor with temperature, the influence of sintering temperature on structure and luminescence, the mineralization role of boric acid and the chemical reactions that occur with generation of precipitated precursors and upon heating to give luminescent solid solution products are mentioned.

10p dianmotminh02 03-05-2024 2 1   Download

The research "Detection of land surface temperature change in coal mining area using remote sensing and GIS techniques - A case study in Quang Ninh province, Vietnam" explores Land Surface Temperature (LST), which represents the energy exchange between the land surface and the atmosphere, as well as with the biosphere. Variations in surface temperature can lead to the formation of heat islands characterized by higher temperatures compared to surrounding areas.

9p tukhauquantuong1011 22-04-2024 4 2   Download

Part 2 book "Physics for scientists and engineers - An interactive approach" includes content: Oscillations; waves; sound and interference, temperature and the zeroth law of thermodynamics; heat, work, and the first law of thermodynamics; heat engines and the second law of thermodynamics, electric fields and forces; Gauss's law; electrical potential energy and electric potential; capacitance.

428p muasambanhan10 11-04-2024 4 2   Download

Part 2 book "Principles of physics - A calculus based text" includes content: Gravity, planetary orbits, and the hydrogen atom, oscillatory motion, mechanical waves, superposition and standing waves, fluid mechanics, temperature and the kinetic theory of gases, energy in thermal processes - the first law of thermodynamics, heat engines, entropy, and the second law of thermodynamics, electric forces and electric fields, electric potential and capacitance, current and direct current circuits, magnetic forces and magnetic fields.

428p muasambanhan10 06-04-2024 1 0   Download

Part 2 book "Physics for scientists and engineers" by authors Raymond A. Serway and John W. Jewett includes content: Oscillatory motion, wave motion, sound waves, superposition and standing waves, temperature, heat and the first law of thermodynamics, the kinetic theory of gases, heat engines, entropy and the second law of thermodynamics, electric fields, Gauss’s law, electric potential, capacitance and dielectrics, current and resistance, direct current circuits, magnetic fields.

475p muasambanhan10 03-04-2024 4 1   Download

Part 2 book "Physics for scientists and engineers with modern physics" by authors Raymond A. Serway and John W. Jewett, Jr. includes content: Oscillatory motion; wave motion; sound waves, superposition and standing waves, temperature, the first law of thermodynamics, the kinetic theory of gases, heat engines, entropy, and the second law of thermodynamics, electric fields; Gauss’s law,.... and other contents.

560p muasambanhan10 03-04-2024 8 1   Download

In the compressed wood production technology, the heat treatment for dimensional stability of compressed wood plays an important role as it reduces tension in the wood after shape transformed compressing. This study has mentioned the effects of temperature (160.170, 180, 190, 200, 210o C) and duration (0.5, 2.5, 4.5, 6.5, 8.5h) of treatment of Styrax tonkinensis woodin a vacuum condition of 650mmHg.

12p vilarry 01-04-2024 1 1   Download

Ebook "In-situ thermoelectrochemistry: Working with heated electrodes" represents the first rigorous treatment of thermoelectrochemistry, providing an overview that will stimulate electrochemists to develop and apply modern thermoelectrochemical methods. While classical static approaches are also covered, the emphasis lies on methods that make it possible to independently vary temperature such as in-situ heating of electrodes by means of electric current, microwaves or lasers. For the first time, “hot-wire electrochemistry” is examined in detail.

153p tudohanhtau1006 29-03-2024 4 1   Download

Ebook "Computational fluid dynamics applications in food processing" has been applied extensively to great benefit in the food processing sector.

92p coduathanh1122 27-03-2024 4 1   Download

Part 2 book "Physics for scientists and engineers with modern physics" includes content: Oscillatory motion, wave motion, sound waves, superposition and standing waves, temperature, the first law of thermodynamics, the kinetic theory of gases, heat engines, entropy and the second law of thermodynamics.

575p muasambanhan09 12-03-2024 1 0   Download

Part 1 book "Fluid mechanics, heat transfer and mass transfer - Chemical engineering practice" includes content: Fluid mechanics basics; fluid flow; piping, seals, and valves; flow measurement; pumps, ejectors, blowers, and compressors; mixing; two phase flow systems; dimensionless numbers, temperature measurement, and conduction heat transfer; convective heat transfer basics.

348p muasambanhan09 12-03-2024 6 0   Download